1. President-elect, American Academy of Environmental Engineers and Scientists, Annapolis, Maryland, USA.
2. Education Committee Chair, American Academy of Environmental Engineers and Scientists, Annapolis, Maryland, USA.
3. ASEE-appointed Trustee, American Academy of Environmental Engineers and Scientists, Annapolis, Maryland, USA.
4. AEESP-appointed Trustee, American Academy of Environmental Engineers and Scientists, Annapolis, Maryland, USA.
5. Vice President, Association of Environmental Engineering and Science Professors, Washington, District of Columbia, USA.
6. Environmental Engineering Division Program Chair, American Society for Engineering Education, Washington, District of Columbia, USA.
7. Environmental Engineering Division Chair, American Society for Engineering Education, Washington, District of Columbia, USA.
8. Vice President, American Academy of Environmental Engineers and Scientists, Annapolis, Maryland, USA.